Ford F-250 SD 2021–2023 — technical service bulletin
Bulletin SSM 51649 · NHTSA communication 10236586 · issued May 19, 2023
Technical service bulletin
communication type
Power Train
component
2021–2023
model years
20
vehicle entries
Official summary
Some 2021-2023 F-Super Duty vehicles equipped with a 10R140 transmission may exhibit harsh or delayed engagement/shift concerns. Most concerns may be addressed with the PCM/TCM Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual, Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive learning drive cycle before attempting internal service. Although this routine w
Vehicles covered
- 2021 Ford F-250 SD
- 2022 Ford F-250 SD
- 2023 Ford F-250 SD
- 2021 Ford F-350 SD
- 2022 Ford F-350 SD
- 2023 Ford F-350 SD
- 2021 Ford F-450 SD
- 2022 Ford F-450 SD
- 2023 Ford F-450 SD
- 2021 Ford F-550 SD
- 2022 Ford F-550 SD
- 2023 Ford F-550 SD
- 2021 Ford F-600 SD
- 2022 Ford F-600 SD
- 2021 Ford F-650 SD
- 2022 Ford F-650 SD
- 2023 Ford F-650 SD
- 2021 Ford F-750 SD
- 2022 Ford F-750 SD
- 2023 Ford F-750 SD
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.